And next, a new report tonight that is likely to give a lot of americans a wake-up call yuft in time are if the long weekend ahead. Memorial day shaping up to be as busy as ever. More than 31 million americans expected to drive more than 50 miles to get away, between tomorrow and monday. And many will be in for a surprise, a dramatic hike in gas prices. Abc's chief business correspondent, rebecca jarvis, breaks it down. Reporter: Tonight the national average for a gallon of gas is $3.66. Drivers in the middle of the country are especially hard hit. Midwest prices on average have jumped a whopping 66 cents this month. Versus the rest of the country where prices are up between two and 12 cents. That's because? That's because of the refinery of work, it's ongoing in the middle of the country, and it will end soon. Reporter: But in the meantime, it's adding up. A month ago, a road trip to the grand canyon from minneapolis would have cost $700, today about $900. Experts say drivers on the coast should buckle up. Americans pay the most at the pump during summer months. Tips for your trip. Park in the shade. Less gas evaporation. Plus fill the tank all the way up. Filling up halfway only means you'll burn more gas going to and from the station. Rebecca jarvis, abc news, new york.

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